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Table 3 Factors associated with incidence sexually transmitted infections among the cohort participants

From: Incidence rate of sexually transmitted infections among HIV infected patients on long-term ART in an urban and a rural clinic in Uganda

Variable Person time Event Un-adjusted cox model Adjusted Cox-model
HR (95% CI) HR (95% CI
Site
 Urban 12,305.7 17 Ref Ref
 Rural 20,500.3 74 2.58 (1.52–4.40) 2.82 (1.60–5.00)
Age at baseline
 18–34 5152.6 16 1.72(1.07–3.00) 2.14 (1.08–4.21
 35–44 14,661.4 50 1.52 (0.80–1.84) 1.74 (1.05–2.83)
 > 45 12,992.0 25 Ref Ref
Gender
 Female 23,986.5 78 Ref Ref
 Male 8819.6 13 0.45 (0.25–0.81) 0.51 (0.27–0.93)
Marital status
 Married/cohabiting 15,183.3 42 Ref  
 Not married 17,622.7 49 1.00 (0.67–1.52)  
Educational level
 No formal education 4032.5 15 Ref  
 Primary Level 15,219.0 36 0.61 (0.34–1.12)  
 ≥Secondary level 13,554.7 40 0.75 (0.42–1.36)  
Employment
 No Formal employment 8827.1 26 Ref  
 Formal employment 23,506.0 65 0.98 (0.62–1.54)  
Risky sexual behavior
 No risky sexual behavior 27,895.2 70 Ref  
 Risky sexual behavior 4875.6 21 1.70 (1.04–2.77) 1.40 (0.84–2.33)
Baseline Viral load Log viral load    1.04 (0.86–1.25)  
 < 1000 copies/ml 28,780.7 72 Ref  
 ≥1000 copies/ml 4008.6 10 1.04 (0.87–1.26) 1.21 (0.70–2.08)
Baseline CD4 cell/mm3
 < 200 cells/mm3 3132.3 10 Ref  
 ≥200 cells/mm3 29,673.8 81 0.87 (0.45–1.67)  
Time on ART    0.98 (0.80–1.20)